U.S. patent application number 14/267655 was filed with the patent office on 2015-08-06 for touch sensor.
This patent application is currently assigned to SAMSUNG ELECTRO-MECHANICS CO., LTD.. The applicant listed for this patent is SAMSUNG ELECTRO-MECHANICS CO., LTD.. Invention is credited to Tae Kyung LEE, Beom Seok OH, Jang Ho PARK.
Application Number | 20150220184 14/267655 |
Document ID | / |
Family ID | 53754814 |
Filed Date | 2015-08-06 |
United States Patent
Application |
20150220184 |
Kind Code |
A1 |
PARK; Jang Ho ; et
al. |
August 6, 2015 |
TOUCH SENSOR
Abstract
Embodiments of the invention provide a touch sensor, including a
window substrate including a central region and an edge region
formed to enclose the central region, a bezel part formed in the
edge region on a rear of the window substrate and including at
least one bezel layer, an antenna pattern formed in the bezel part
and transmitted or received to or from the outside by wireless
communication, and a sensor module including an electrode pattern,
which is formed on a base substrate and corresponds to the central
region and formed on a plane different from the antenna
pattern.
Inventors: |
PARK; Jang Ho; (Gyeonggi-Do,
KR) ; OH; Beom Seok; (Gyeonggi-Do, KR) ; LEE;
Tae Kyung; (Gyeonggi-Do, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
Gyeonggi-Do |
|
KR |
|
|
Assignee: |
SAMSUNG ELECTRO-MECHANICS CO.,
LTD.
Gyeonggi-Do
KR
|
Family ID: |
53754814 |
Appl. No.: |
14/267655 |
Filed: |
May 1, 2014 |
Current U.S.
Class: |
345/174 |
Current CPC
Class: |
H04M 1/0266 20130101;
H01Q 1/243 20130101; H01Q 1/22 20130101; G06F 3/0445 20190501; H04M
2250/22 20130101 |
International
Class: |
G06F 3/041 20060101
G06F003/041; H01Q 1/22 20060101 H01Q001/22; G06F 3/044 20060101
G06F003/044 |
Foreign Application Data
Date |
Code |
Application Number |
Feb 3, 2014 |
KR |
10-2014-0012191 |
Claims
1. A touch sensor, comprising: a window substrate comprising a
central region and an edge region formed to enclose the central
region; a bezel part formed in the edge region on a rear of the
window substrate and comprising at least one bezel layer; an
antenna pattern formed in the bezel part and transmitted or
received to or from the outside by wireless communication; and a
sensor module comprising an electrode pattern which is formed on a
base substrate and corresponds to the central region and formed on
a plane different from the antenna pattern.
2. The touch sensor as set forth in claim 1, wherein the bezel part
comprises one bezel layer and the antenna pattern is formed on the
bezel layer.
3. The touch sensor as set forth in claim 1, wherein the bezel part
comprises a plurality of bezel layers and the antenna pattern is
formed between the bezel layers.
4. The touch sensor as set forth in claim 1, wherein the bezel part
comprises a plurality of bezel layers and the antenna pattern is
formed on the bezel part.
5. The touch sensor as set forth in claim 1, further comprising: an
anti-scattering film having one surface bonded to the rear of the
window substrate and the other surface provided with the bezel part
formed in a region corresponding to the edge region.
6. The touch sensor as set forth in claim 5, wherein the bezel part
comprises one bezel layer and the antenna pattern is formed on the
bezel layer.
7. The touch sensor as set forth in claim 5, wherein the bezel part
comprises a plurality of bezel layers and the antenna pattern is
formed between the bezel layers.
8. The touch sensor as set forth in claim 5, wherein the bezel part
comprises a plurality of bezel layers and the antenna pattern is
formed on the bezel part.
9. The touch sensor as set forth in claim 1, wherein the antenna
pattern is formed only in a part of the region of the bezel
part.
10. The touch sensor as set forth in claim 1, wherein the sensor
module comprises: a first electrode pattern formed on one surface
of the base substrate to be parallel with each other in one
direction; and a second electrode pattern formed on the other
surface of the base substrate to be parallel with each other in a
direction in which the second electrode pattern intersects the
first electrode pattern.
11. The touch sensor as set forth in claim 1, wherein the sensor
module comprises: a first electrode pattern formed on one surface
of a first base substrate to be parallel with each other in one
direction; and a second electrode pattern formed on one surface of
a second base substrate to be parallel with each other in a
direction in which the second electrode pattern intersects the
first electrode pattern.
12. A touch sensor, comprising: a window substrate comprising a
central region and an edge region formed to enclose the central
region; an electrode pattern formed in the central region on a rear
of the window substrate; a bezel part formed in the edge region on
a rear of the window substrate and comprising at least one bezel
layer; and an antenna pattern formed in the bezel part and
transmitted or received to or from the outside by wireless
communication.
13. The touch sensor as set forth in claim 12, wherein the bezel
part comprises one bezel layer and the antenna pattern is formed on
the bezel layer.
14. The touch sensor as set forth in claim 12, wherein the bezel
part comprises a plurality of bezel layers and the antenna pattern
is formed between the bezel layers.
15. The touch sensor as set forth in claim 12, wherein the antenna
pattern is formed only in a part of the region of the bezel part.
Description
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of and priority under 35
U.S.C. .sctn.119 to Korean Patent Application No. KR
10-2014-0012191, entitled "Touch Sensor," filed on Feb. 3, 2014,
which is hereby incorporated by reference in its entirety into this
application.
BACKGROUND
[0002] 1. Field of the Invention
[0003] The present invention to a touch sensor.
[0004] 2. Description of the Related Art
[0005] With the development of computers using a digital
technology, computer-aided devices have also been developed, and
personal computers, portable transmitters and other personal
information processors execute processing of texts and graphics
using a variety of input devices such as a keyboard and a
mouse.
[0006] However, a technology of the input device has been
developing to satisfy, for example, high reliability, durability,
innovativeness, design, processing related technologies, as well as
satisfy general functions. To achieve the purposes, a capacitive
touch panel has been developed as the input devices to input
information, such as text and graphic, as described for example, in
Korean Patent Publication No. 10-2013-0013350.
[0007] In addition, the touch panel is classified into a resistive
touch panel, a capacitive touch panel, an electromagnetic touch
panel, a surface acoustic wave (SAW) type touch panel, and an
infrared touch panel. Among, those, a capacitive touch panel 100 is
adapted for electronic products in consideration of a signal
amplification problem, a resolution difference, a level of
difficulty of designing and processing technologies, optical
characteristics, electrical characteristics, mechanical
characteristics, resistance to an environment characteristics,
input characteristics, durability, and economic efficiency.
Currently, the resistive touch panel and the capacitive touch panel
have been prominently used in a wide range of fields.
[0008] Recently, with the development of smart devices, the touch
panel is applied to almost all electronic devices, such as a mobile
phone, a tablet, an ultra PC, a monitor, and a home appliance
including TV. With the development of a technology and the
increasing competition, the touch panel applied to these devices
has been manufactured to have high-specification performance and a
thinner thickness and save costs so as to meet a market demand.
[0009] Further, as various communication services with external or
other mobile devices are increased and a data truffle transmitted
or received is increased, a necessity of an antenna which may cover
more frequency bands has been increased. In particular, for local
wireless communication such as near field communication (NFC), a
large antenna, and the like which may receive a signal in a low
frequency hand has been required.
[0010] Therefore, antennas suitable for frequencies of various
communication services are individually installed at various
locations within a limited space range of the mobile device, such
that an electrical interference with electronic components around
the antennas and the accompanying communication frequency
distortion, and the like may occur and transmission and reception
sensitivity of antenna communication may be changed depending on a
position of a user's hand.
SUMMARY
[0011] Accordingly, embodiments of the invention provide a touch
sensor capable of securing a mounting space of various antenna
patterns depending on a frequency band by forming the antenna
patterns for wireless communication in a bezel part on a window
substrate.
[0012] According to an embodiment of the invention, there is
provided a touch sensor including a window substrate including a
central region and an edge region formed to enclose the central
region, a bezel part formed in the edge region on a rear of the
window substrate and including at least one bezel layer, an antenna
pattern formed in the bezel part and transmitted or received to or
from the outside by wireless communication, and a sensor including
an electrode pattern, which is formed on a base substrate and
corresponds to the central region and formed on a plane different
from the antenna pattern.
[0013] According to an embodiment, the bezel part includes one
bezel layer and the antenna pattern is formed on the bezel
layer.
[0014] According to an embodiment, the bezel part includes a
plurality of bezel layers and the antenna pattern is formed between
the bezel layers.
[0015] According to an embodiment, the bezel part includes a
plurality of bezel layers and the antenna pattern is formed on the
bezel part.
[0016] According to an embodiment, the touch sensor further
includes an anti-scattering film having one surface bonded to the
rear of the window substrate and the other surface provided with
the bezel part formed in a region corresponding to the edge
region.
[0017] According to an embodiment, the bezel part includes one
bezel layer and the antenna pattern may be formed on the bezel
layer.
[0018] According to an embodiment, the bezel part includes a
plurality of bezel layers and the antenna pattern is formed between
the bezel layers.
[0019] According to an embodiment, the bezel part includes a
plurality of bezel layers and the antenna pattern is formed on the
bezel part.
[0020] According to an embodiment, the antenna pattern is formed
only in a part of the region of the bezel part.
[0021] According to an embodiment, the sensor includes a first
electrode pattern formed on one surface of the base substrate to be
parallel with each other in one direction and a second electrode
pattern formed on the other surface of the base substrate to be
parallel with each other in a direction in which the second
electrode pattern intersects the first electrode pattern.
[0022] According to an embodiment, the sensor includes a first
electrode pattern formed on one surface of a first base substrate
to be parallel with each other in one direction, and a second
electrode pattern formed on one surface of a second base substrate
to be parallel with each other in a direction in which the second
electrode pattern intersects the first electrode pattern.
[0023] According to another embodiment of the invention, there is
provided a touch sensor, including a window substrate including a
central region and an edge region formed to enclose the central
region, an electrode pattern formed in the central region on a rear
of the window substrate, a bezel part formed in the edge region on
a rear of the window substrate and including at least one bezel
layer, and an antenna pattern formed in the bezel part and
transmitted or received to or from the outside by wireless
communication.
[0024] According to an embodiment, the bezel part includes one
bezel layer and the antenna pattern is formed on the bezel
layer.
[0025] According to an embodiment, the bezel part includes a
plurality of bezel layers and the antenna pattern is formed between
the bezel layers.
[0026] According to an embodiment, the antenna pattern is formed
only in a part of the region of the bezel part.
[0027] Various objects, advantages and features of the invention
will become apparent from the following description of embodiments
with reference to the accompanying drawings.
BRIEF DESCRIPTION OF DRAWINGS
[0028] These and other features, aspects, and advantages of the
invention are better understood with regard to the following
Detailed Description, appended Claims, and accompanying Figures. It
is to be noted, however, that the Figures illustrate only various
embodiments of the invention and are therefore not to be considered
limiting of the invention's scope as it may include other effective
embodiments as well.
[0029] FIG. 1 is a perspective view illustrating a display device
including a touch sensor according to an embodiment of the
invention.
[0030] FIG. 2 is a cross-sectional view of a touch screen according
to an embodiment of the invention.
[0031] FIG. 3 is a cross-sectional view of a touch screen according
to an embodiment of the invention.
[0032] FIG. 4 is a cross-sectional view of a touch screen according
to an embodiment of the invention.
[0033] FIG. 5 is a plan view of the touch sensor according to an
embodiment of the invention.
[0034] FIG. 6 is a cross-sectional view of a sensor according to an
embodiment of the invention.
[0035] FIG. 7 is a cross-sectional view of a touch screen according
to a fourth embodiment of the invention.
DETAILED DESCRIPTION
[0036] Advantages and features of the present invention and methods
of accomplishing the same will be apparent by referring to
embodiments described below in detail in connection with the
accompanying drawings. However, the present invention is not
limited to the embodiments disclosed below and may be implemented
in various different forms. The embodiments are provided only for
completing the disclosure of the present invention and for fully
representing the scope of the present invention to those skilled in
the art.
[0037] For simplicity and clarity of illustration, the drawing
figures illustrate the general manner of construction, and
descriptions and details of well-known features and techniques may
be omitted to avoid unnecessarily obscuring the discussion of the
described embodiments of the invention. Additionally, elements in
the drawing figures are not necessarily drawn to scale. For
example, the dimensions of some of the elements in the figures may
be exaggerated relative to other elements to help improve
understanding of embodiments of the present invention. Like
reference numerals refer to like elements throughout the
specification.
[0038] FIG. 1 is a perspective view illustrating a display device
including a touch sensor according to an embodiment of the
invention, FIGS. 2 to 4 are cross-sectional views of a touch sensor
according to various embodiments of the invention taken along the
line 1-1' of FIG. 1, FIG. 5 is a plan view of the touch sensor
according an embodiment of the invention, and FIG. 6 is a
cross-sectional view of a sensor module according an embodiment of
the invention.
[0039] A touch sensor 10 according to an embodiment of the
invention includes a bezel part 130, which is formed in an edge
region R2 on a rear of a window substrate 100, an antenna pattern
140, which is transmitted and received to or from the outside by
wireless communication and is formed in the bezel part 130,
electrode patterns 162 and 163, which are formed on base substrates
161 and 165, and a sensor unit 160, which is opposite to the window
substrate 100 and is bonded to the bezel part 130. In this
configuration, the touch sensor 10 includes a display unit 180,
which is bonded to one surface of the touch sensor 10 and further
includes an anti-scattering film 120, which has one surface bonded
to the rear of the window substrate 100 and has the bezel part 130
formed in the region corresponding to the edge region R2.
[0040] According to an embodiment, the window substrate 100
includes a central region R1 and the edge region R2, which is
formed to enclose the central region R1 and is disposed at an
outermost side of the touch sensor 10 to be able to serve to
receive a touch of a user and is made, for example, of tempered
glass to be able to serve as a protective layer.
[0041] Further, as illustrated in FIG. 7, since a bezel part 130
and an electrode pattern 310 are formed on the rear of the window
substrate 100, the rear of the window substrate 100 is subjected,
for example, to high frequency treatment or primer treatment to
improve an adhesion between the window substrate 100 and the bezel
part 130 or the electrode pattern 310, thereby forming a surface
treatment layer (not illustrated).
[0042] As illustrated in FIGS. 2 to 4, the bezel part 130,
according to an embodiment, is formed in the edge region R2 on the
rear of the window substrate 100 and includes at least one bezel
layer 130a and 130b and serves to cover a region in which electrode
wirings 164 having an opaque metal color on the base substrates 161
and 165 are formed, for example, with a decorative pattern, such as
a maker logo.
[0043] According to an embodiment, the bezel part 130 is formed by
sequentially stacking at least one bezel layers 130a and 130b,
which is made, for example, of a black color, a white color, a
green color, or a combination thereof, and a bezel composition
including a silane, a colorant, and a binder resin, in which the
bezel composition further includes, for example, a
photo-polymerizable compound, a photo polymerizable initiator, or
an additive.
[0044] Further, the bezel part 130, according to an embodiment, is
formed in a region corresponding to the edge region R2 of the
window substrate 100 on the anti-scattering film 120 and thus is
formed, for example, in the edge region R2 on the rear of the
window substrate 100 by bonding the anti-scattering film 120 to the
window substrate 100.
[0045] Further, the antenna pattern 140 serves to transmit or
receive a wireless signal related to near field communication
(NFC), and a size and a shape of the antenna pattern 140 are
determined, depending on the frequency band of the wireless signal.
Therefore, according to the conventional art, since the antenna
patterns 140 suitable for various wireless communication service
frequencies are individually installed in various positions (e.g.,
a latter end, an outer region, etc, of a mobile device) within a
limited space range of the mobile device, the mounting space of the
antenna pattern 140 required for multi-functional wireless
communication services may be limited and the accuracy of
transmission and reception of wireless communications may be
degraded due to electrical interference with other electronic parts
(e.g., electrode patterns).
[0046] However, the antenna pattern 140 of the touch sensor 10
according to an embodiment of the invention is formed in the edge
region R2 on the rear of the window substrate 100 and thus is
formed in the bezel parts 130, 230, and 330, which serve to cover
the region in which the electrode wirings 164 having the opaque
metal color on the base substrates 161 and 165 are formed.
[0047] Thus, the bezel parts 130, 230, and 330 formed in the edge
region R2 on the rear of the window substrate 100, according to
various embodiments, include i) one bezel layer 130, in which the
antenna pattern 140 is formed on the bezel layer 130 (see FIG. 2),
ii) a plurality of bezel layers 230a and 230b or 330a and 330b, in
which the antenna pattern 240 or 340 are formed between the bezel
layers 230a and 230h or 330a and 330b (see FIG. 3 or 7), and iii) a
plurality of bezel layers 430a and 430b, in which the antenna
pattern 40 are formed on the bezel part 430 (see FIG. 4).
[0048] According to an embodiment, the bezel part 130 includes the
plurality of bezel layers 130a and 130b and since the bezel layers
130a and 130b are sequentially stacked by a plurality of stacking
processes and thus formed to have a thickness of 10 .mu.m or more,
the antenna pattern 140 is mounted between the bezel layers 130a
and 130b and the antenna pattern 140 is made of metal having high
conductivity, such as Ag, Cu, Al, and the like, and is formed in
the whole or a part of the region of the bezel part 130 of the edge
region R2 on the rear of the window substrate 100 by a screen
printing method, an imprinting method, a photolithography method,
as non-limiting examples (see FIG. 5).
[0049] According to various embodiments of the invention, it is
possible to more effectively secure the space in Which the antenna
patterns suitable for the signals in various frequency bands used
in the multi-functional communication environments are mounted, as
compared with the conventional art having a form in which the
antenna patterns are mounted in the limited space range, due to the
structure in which the antenna patterns for wireless communication
are mounted in the bezel part formed in the edge region on the rear
of the window substrate.
[0050] According to an embodiment, adhesive layers 110, 150, and
170 serve to bond components of the touch sensor 10 to each other
and are made of a transparent material so as not to hinder a user
from recognizing an image output through the display unit 180, for
example, an optical clear adhesive (OCA).
[0051] According to an embodiment, the display unit 180, which is
bonded to one surface of the touch sensor 10 through the adhesive
layer 170 is a display device, which visually outputs data on a
screen and includes, for example, a cathode ray tube (CRT), a
liquid crystal display (LCD), a plasma display panel (PDP), a light
emitting diode (LED), and an organic light emitting diode (OLED),
but is not necessarily limited thereto.
[0052] As described above, it is not only possible to secure the
mounting space of various antenna patterns and when the antenna
pattern made of the conductive metal for wireless communication is
formed between the bezel layers (see FIGS. 3 and 7), but also
improve characteristics of anti-moisture of the antenna pattern 140
and secure the durability of the capacitive touch sensor, due to
the structure in which the antenna patterns for wireless
communication are mounted in the bezel part formed in the edge
region on the rear of the window substrate.
[0053] As illustrated in FIG. 6, the sensor module 160 includes i)
a first electrode pattern 162, which is formed on one surface of
the base substrate 161 to be parallel with each other in one
direction and a second electrode pattern 163, which is formed on
the other surface of the base substrate 161 to be parallel with
each other in a direction in which the second electrode pattern 163
intersects the first electrode pattern 162 (see FIG. 6A), ii) the
first electrode pattern 162, which is formed on one surface of the
base substrate 161 to be parallel with each other in one direction
and the second electrode pattern 163, which is formed on one
surface of the second base substrate 165 to be parallel with each
other in a direction in which the second electrode pattern 163
intersects the first electrode pattern 162 (see FIG. 6B), and iii)
the electrode wirings 164, which are electrically connected to ends
of the first and second electrode patterns 162 and 163.
[0054] Thus, the antenna pattern 140, according to an embodiment of
the invention, is mounted in the bezel part 130 of the edge region
R2 on the rear of the window substrate 100 provided on a plane
different from the base substrates 161 and 165, and thus is
provided to be spaced apart from the first electrode pattern 162,
the second electrode pattern 163, and the electrode wiring 164,
which are formed on the base substrates 161 and 165 and made of a
conductive material.
[0055] As described above, the antenna pattern in the touch sensor
according to an embodiment of the invention minimizes the mutual
electrical interference, which may be caused due to the antenna
patterns and the electrode patterns made of the conductive
material, which are formed on the same plane and secure the
reliability of transmission and reception of the frequency signal
in various communication environments, by the structure in winch
the antenna patterns for wireless communication are mounted in the
bezel part of the edge region on the rear of the window substrate
provided on the plane different from the base substrate.
[0056] According to various embodiments of the invention, it is
possible to secure the space in which the antenna patterns suitable
for the signals in various frequency bands used in more various
communication environments may be effectively mounted, due to the
structure in which the antenna patterns for wireless communication
are mounted in the bezel part formed in the edge region on the rear
of the window substrate.
[0057] In-addition, it is possible to minimize the mutual
electrical interference, which may be caused due to the antenna
patterns and the electrode patterns made of the conductive
material, which are formed on the same plane and secure the
reliability of transmission and reception of the frequency signal
in various communication environments by mounting the antenna
patterns for wireless communication in the bezel part of the edge
region on the rear of the window substrate provided on the plane
different from the base substrate.
[0058] In addition, it is possible to improve the characteristics
of anti-moisture of the antenna patterns and secure the durability
of the capacitive touch sensor by forming the bezel part configured
of the plurality of bezel layers on the rear of the window
substrate and forming the antenna patterns made of the conductive
metal for wireless communication between the bezel layers.
[0059] Terms used herein are provided to explain embodiments, not
limiting the present invention. Throughout this specification, the
singular form includes the plural form unless the context clearly
indicates otherwise. When terms "comprises" and/or "comprising"
used herein do not preclude existence and addition of another
component, step, operation and/or device, in addition to the
above-mentioned component, step, operation and/or device.
[0060] Embodiments of the present invention may suitably comprise,
consist or consist essentially of the elements disclosed and may be
practiced in the absence of an element not disclosed. For example,
it can be recognized by those skilled in the art that certain steps
can be combined into a single step.
[0061] The terms and words used in the present specification and
claims should not be interpreted as being limited to typical
meanings or dictionary definitions, but should be interpreted as
having, meanings and concepts relevant to the technical scope of
the present invention based on the rule according to which an
inventor can appropriately define the concept of the term to
describe the best method he or she knows for carrying out the
invention.
[0062] The terms "first," "second", "third," "fourth," and the
like, in the description and in the claims, if any, are used for
distinguishing between similar elements and not necessarily for
describing a particular sequential or chronological order. It is to
be understood that the terms so used are interchangeable under
appropriate circumstances such that the embodiments of the
invention described herein are, for example, capable of operation
in sequences other than those illustrated or otherwise described
herein. Similarly, if a method is described herein as comprising a
series of steps, the order of such steps as presented herein is not
necessarily the only order in which such steps may be performed,
and Certain of the stated steps may possibly be omitted and/or
certain other steps not described herein may possibly be added to
the method.
[0063] The singular forms "a," "an," and "the" include plural
referents, unless the context clearly dictates otherwise.
[0064] As used herein and in the appended claims, the words
"comprise," "has," and "include" and all grammatical variations
thereof are each intended to have an open, non-limiting meaning,
that does not exclude additional elements or steps.
[0065] As used herein, the terms "left," "right," "front," "back,"
"top," "bottom," "over," "under," and the like in the description
and in the claims, if any, are used for descriptive purposes and
not necessarily for describing permanent relative positions. It is
to be understood that the terms so used are interchangeable under
appropriate circumstances such that the embodiments of the
invention described herein are, for example, capable of operation
in other orientations than those illustrated or otherwise described
herein. The term "coupled," as used herein, is defined as directly
or indirectly connected in an electrical or non-electrical manner.
Objects described herein as being "adjacent to" each other may be
in physical contact with each other, in close proximity to each
other, or in the same general region or area as each other, as
appropriate for the context in which the phrase is used.
Occurrences of the phrase "in one embodiment" herein, do not
necessarily all refer to the same embodiment.
[0066] Ranges may be expressed herein as from about one particular
value, and/or to about another particular value. When such a range
is expressed, it is to be understood that another embodiment is
from the one particular value and/or to the other particular value,
along with all combinations within said range.
[0067] Although the present invention has been described in detail,
it should be understood that various changes, substitutions, and
alterations can be made hereupon without departing from the
principle and scope of the invention. Accordingly, the scope of the
present invention should be determined by the following claims and
their appropriate legal equivalents.
* * * * *